Best bookmark utility I have found. Much better than speed dials and far more efficient. Plus, it allows for theme customization through CSS. Here is my custom stylesheet 'Darkstyle 1' It is easy on the eyes and fits in with the dark themes found in Linux distributions. Looks good with Windows, too.

/* darkstyle 1 written by techmedixx */
body {
background: #232729;
margin: 20px;
padding: 2px;
font-size: 12px;
}
table {
border-radius: 15px;
margin-top: 10px;
background: #474749;
}
td {
vertical-align: top;
padding: 5px;
}
.folder {
box-shadow: 2px 2px 2px #aaa;
background: #232729;
border-radius: 11px;
margin-top: 0px;
margin-bottom: 10px;
padding: 2px;
}
.folder h2 {
border-top-left-radius: 10px;
border-top-right-radius: 10px;
margin:0px;
font-size: small;
background: #1b2025;
color: #bababa;
text-align: center;
font-family: Verdana, Arial, Helvetica, sans-serif;
}
ul {
margin: 6px;
padding: 0px;
line-height: 15px;
list-style-type: none;
}
li {
margin-bottom: 5px;
line-height: 15px;
}
li:hover {
background: #5d7eae;
}
a {
text-decoration: none;
color: #0c0c0d;
font-family: Verdana, Arial, Helvetica, sans-serif;
}
a:hover {
text-decoration: none;
color:#474749;
}
ul li a:visited {
color: #E0E0E0;
font-weight: bold;
background-color: #a7a6a6;
}
ul li a:visited:hover {
color: #232729;
font-weight: bold;
background-color: #5d7eae;
}

ul li a:hover {
color: #232729;
font-weight: bold;
background-color: #969393;
}

ul li a {
text-decoration: none;
color: #E0E0E0;
list-style-position: inside;
list-style-type: disc;
display: list-item;
padding-left: 5px;
}
.folder h2 a {
color:#E0E0E0;
}
.folder h2 a:hover {
text-decoration: underline;
color: #5d7eae;
}
img.favicon {
max-width: 16px;
max-height: 16px;
vertical-align: top;
border: 0;
margin-right: 4px;
margin-left: -20px;
margin-top: 0px;
margin-bottom: -1px;
background-color: #cccccc;
padding: 1px;
}


Here is another that is a modified version of above:

/* darkstyle 2 written by techmedixx */
body {
background: #131619;
margin: 20px;
padding: 2px;
font-size: 12px;
}
table {
border-radius: 15px;
margin-top: 10px;
background: #474749;
}
td {
vertical-align: top;
padding: 5px;
}
.folder {
box-shadow: 2px 2px 2px #aaa;
background: #232729;
border-radius: 11px;
margin-top: 0px;
margin-bottom: 10px;
padding: 2px;
}
.folder h2 {
border-top-left-radius: 10px;
border-top-right-radius: 10px;
margin:0px;
font-size: small;
background: #131619;
color: #9b9b9b;
text-align: center;
font-family: Verdana, Arial, Helvetica, sans-serif;
}
ul {
margin: 6px;
padding: 0px;
line-height: 15px;
list-style-type: none;
}
li {
margin-bottom: 5px;
line-height: 15px;
}
li:hover {
background: #5d7eae;
}
a {
text-decoration: none;
color: #0c0c0d;
font-family: Verdana, Arial, Helvetica, sans-serif;
}
a:hover {
text-decoration: none;
color:#474749;
}
ul li a:visited {
color: #E0E0E0;
font-weight: bold;
background-color: #a7a6a6;
}
ul li a:visited:hover {
color: #232729;
font-weight: bold;
background-color: #f5ff3f;
}

ul li a:hover {
color: #232729;
font-weight: bold;
background-color: #2499ff;
}

ul li a {
text-decoration: none;
color: #E0E0E0;
list-style-position: inside;
list-style-type: disc;
display: list-item;
padding-left: 5px;
}
.folder h2 a {
color:#E0E0E0;
}
.folder h2 a:hover {
text-decoration: underline;
color: #5d7eae;
}
img.favicon {
max-width: 16px;
max-height: 16px;
vertical-align: top;
border: 0;
margin-right: 4px;
margin-left: -20px;
margin-top: 0px;
margin-bottom: -1px;
background-color: #cccccc;
padding: 1px;
}

Since the release of Quantum, and whether standard or via Speed dials, this is so far the best way to display bookmarks. Speed dials in Quantum are a joke, and the bookmarking features native to FF have not changed in forever. This extension can produce beautiful and useful results.

It is not without bugs however. For example, using the "modify this bookmark property" submenu can result in unintended and often serious issues. So far, I have had it change every bookmark in a folder to match the changes of the SINGLE bookmark I was working on. Removing a bookmark can result in the removed bookmark being duplicated several times within the folder. Bookmarks rarely, but occasionally, just disappear after being edited within the webextension, and so on. The issues with using the Bookmarks Home menu and submenus is bad enough that I no longer use it, and use the built in FF editor. On the other hand, once you figure out the foibles, the results are brilliant.

Backup your bookmarks regularly using the FF built in backup, and manually copy your custom CSS scripts from the editor and save them somewhere.

Finally, there is no way to now use the extension as a New Tab page.

Excellent. Merci pour ce travail.

Brilliant.

Отлично!!!

must have

Download files and Modify browser download history (to remove traces of whatever you planned to download?)
Beware of this add-on people.

I previously had used a bookmark add in that is not supported in Quantum and after using this, I will not be going back to my previous choice even if / when it is supported in this FF version. Lay out and options of are great and love the fact it is my opening screen. Thanks developer for keeping it simple, organized, and functional!!!

Good job!
Can I make changes this page contents.html (except CSS)? Where is it? Or is it generated automatically?
How do I make a page open in new tabs?
-----------
Хорошее дополнение!
Возможно ли изменить исходный код contents.html (кроме CSS)? Где находится этот файл или он генерируется автоматически?
Возможно ли сделать, чтобы эта страница открывалась в новых вкладках?

Love it...can you make it for Chrome?

Nice ! Great job.
Could you please tell me how to customize the search bar ?
I tried changing css, but nothing seems changing.
It would be nice to be able to edit this css, and have an option to keep the search bar opened, or not.
Thank you !

EDIT#####
I managed to change it with the !important trick :
My CSS :
#search-bar{
background: #222 !important;
background-image: none;
background-repeat: repeat;
background-attachment: scroll;
background-clip: border-box;
background-origin: padding-box;
background-position-x: 0%;
background-position-y: 0%;
background-size: auto auto;
display:block !important;
border:none !important;
}
#top_bar{
display:none !important;
border:none !important;
}
#search-clr
{display:none !important;
border:none !important;
}
#search-box {
background-color: #262626;
border: 1px solid #333;
padding: 5px;
color: #fff;
border-radius: 15px;
-moz-border-radius: 15px;
-webkit-border-radius: 15px;
}

EDIT # 2 ########
The URL of the extension is always changing.
As I set BookmarksHome as home page, the result is a blank page when the address changes.
Another plug-in I use opens my home page when charging a new tab... So it opens BookmarksHome .
I have to go to Firefox parameters to set the new address every time it changes...
Is there a way to have a fixed address ?

I've been hunting a long time for an extension which will tell me the containing folder when I search bookmarks - this does it! With the option "Use the breadcrumb folder title" set, I do a standard Firefox "find" on the BookmarksHome page, and immediately see the containing folder and full folder trail in the container's title bar. I think if you made mention of that feature in the overview, more users would find their way to this brilliant extension.

I'm impressed at how neat and clear the BookmarksHome page is and how fast it is rendered.

Feature Request1: For the BookmarksHome context sub-menu, add an entry "Options..." which will bring up the Firefox "BookmarksHome - Preferences" page i.e. moz-extension://..../options.html

Feature Request2: Provide a Preference option to display the Keyword (if present) for each Bookmark Name. Suggest that it can simply follow the Name text (doesn't need a column) e.g.
Amazon [am]
Google Search [gs]
I would prefer the Keyword to be surrounded by the [] characters so that it is easily recognised as a Keyword, rather than using brackets () which are more likely to appear in Bookmark Name text and which you also currently use for bookmarks stored without a Name i.e. "(no title)". I expect I would track/search my Keywords by doing a standard Firefox "find" for the character "[". Showing the Keyword will be very helpful because even the in-built Firefox Bookmarks Library does not have a column for Keyword and you can't search for Keywords: you only can see it when you click on "More" after selecting an individual bookmark.

Many thanks to the developer for your hard work.

Excellent add-on. Please add the style sheet ability to increase the vertical spacing, between folders, in each column. Any additional style sheet options would be great. Thanks.

I am glad you updated this excellent extension to the new firefox standards. Thank you

The best extension for Firefox. The first one I download. Can customize to your liking as well.

Absolutely fantastic work.
Thanks.

EDIT: Will be great have the possibility to store different CSS styles.